How do I build a dynamic query in Mongoose?
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I need to build a query using the following sample data:
{
brandFilters:[ { brand: 'Amana', checked: true },
{ brand: 'Whirlpool', checked: true } ],
priceFilters:[ { low: 100, high: 200, label: '$100 - $200', checked: true },
{ low: 200, high: 300, label: '$200 - $300', checked: true } ],
rating: null }
The first segment of the query builds the brands criteria as shown here;
let brands = ;
let productQuery = Product.find();
if(filters.brandFilters.length) {
for(let filter of filters.brandFilters) {
brands.push(filter.brand)
}
productQuery.where('brand').in(brands)
console.log('brands', brands)
}
The second segment is supposed build the price criteria as shown here:
if(filters.priceFilters.length) {
for(let filter of filters.priceFilters) {
productQuery.where('price').gte(+filter.low).lte(+filter.high);
}
}
The intention is to add a "where" clause for each price filter as shown in the data above. The problem is multiple where clauses for the price criteria are not being added. Each successive price filter in the for loop overwrites the last. So instead of having multiple "where" clauses for my price filters, the query only contains one for the last iteration of the for loop.
I am trying to get to a query that would look like this:
productQuery.where('brand').in(['Amana', 'Whirlpool'])
productQuery.where('price').gte(100).lte(200)
productQuery.where('price').gte(200).lte(300)
node.js mongodb mongoose
asked Jan 4 at 18:42
koquekoque
3831318
add a comment |
I need to build a query using the following sample data:
{
brandFilters:[ { brand: 'Amana', checked: true },
{ brand: 'Whirlpool', checked: true } ],
priceFilters:[ { low: 100, high: 200, label: '$100 - $200', checked: true },
{ low: 200, high: 300, label: '$200 - $300', checked: true } ],
rating: null }
The first segment of the query builds the brands criteria as shown here;
let brands = ;
let productQuery = Product.find();
if(filters.brandFilters.length) {
for(let filter of filters.brandFilters) {
brands.push(filter.brand)
}
productQuery.where('brand').in(brands)
console.log('brands', brands)
}
The second segment is supposed build the price criteria as shown here:
if(filters.priceFilters.length) {
for(let filter of filters.priceFilters) {
productQuery.where('price').gte(+filter.low).lte(+filter.high);
}
}
The intention is to add a "where" clause for each price filter as shown in the data above. The problem is multiple where clauses for the price criteria are not being added. Each successive price filter in the for loop overwrites the last. So instead of having multiple "where" clauses for my price filters, the query only contains one for the last iteration of the for loop.
I am trying to get to a query that would look like this:
productQuery.where('brand').in(['Amana', 'Whirlpool'])
productQuery.where('price').gte(100).lte(200)
productQuery.where('price').gte(200).lte(300)
node.js mongodb mongoose
asked Jan 4 at 18:42
koquekoque
3831318
FWIW, I haven't seen many sites that allow a filter on multiple price ranges. The example you give for a thing you'd want should just beproductQuery.where('price').gte(100).lte(300).
– Paul
Jan 4 at 19:02
add a comment |
I need to build a query using the following sample data:
{
brandFilters:[ { brand: 'Amana', checked: true },
{ brand: 'Whirlpool', checked: true } ],
priceFilters:[ { low: 100, high: 200, label: '$100 - $200', checked: true },
{ low: 200, high: 300, label: '$200 - $300', checked: true } ],
rating: null }
The first segment of the query builds the brands criteria as shown here;
let brands = ;
let productQuery = Product.find();
if(filters.brandFilters.length) {
for(let filter of filters.brandFilters) {
brands.push(filter.brand)
}
productQuery.where('brand').in(brands)
console.log('brands', brands)
}
The second segment is supposed build the price criteria as shown here:
if(filters.priceFilters.length) {
for(let filter of filters.priceFilters) {
productQuery.where('price').gte(+filter.low).lte(+filter.high);
}
}
The intention is to add a "where" clause for each price filter as shown in the data above. The problem is multiple where clauses for the price criteria are not being added. Each successive price filter in the for loop overwrites the last. So instead of having multiple "where" clauses for my price filters, the query only contains one for the last iteration of the for loop.
I am trying to get to a query that would look like this:
productQuery.where('brand').in(['Amana', 'Whirlpool'])
productQuery.where('price').gte(100).lte(200)
productQuery.where('price').gte(200).lte(300)
node.js mongodb mongoose
asked Jan 4 at 18:42
koquekoque
3831318
I need to build a query using the following sample data:
{
brandFilters:[ { brand: 'Amana', checked: true },
{ brand: 'Whirlpool', checked: true } ],
priceFilters:[ { low: 100, high: 200, label: '$100 - $200', checked: true },
{ low: 200, high: 300, label: '$200 - $300', checked: true } ],
rating: null }
The first segment of the query builds the brands criteria as shown here;
let brands = ;
let productQuery = Product.find();
if(filters.brandFilters.length) {
for(let filter of filters.brandFilters) {
brands.push(filter.brand)
}
productQuery.where('brand').in(brands)
console.log('brands', brands)
}
The second segment is supposed build the price criteria as shown here:
if(filters.priceFilters.length) {
for(let filter of filters.priceFilters) {
productQuery.where('price').gte(+filter.low).lte(+filter.high);
}
}
The intention is to add a "where" clause for each price filter as shown in the data above. The problem is multiple where clauses for the price criteria are not being added. Each successive price filter in the for loop overwrites the last. So instead of having multiple "where" clauses for my price filters, the query only contains one for the last iteration of the for loop.
I am trying to get to a query that would look like this:
productQuery.where('brand').in(['Amana', 'Whirlpool'])
productQuery.where('price').gte(100).lte(200)
productQuery.where('price').gte(200).lte(300)
node.js mongodb mongoose
node.js mongodb mongoose
asked Jan 4 at 18:42
koquekoque
3831318
asked Jan 4 at 18:42
koquekoque
3831318
asked Jan 4 at 18:42
koquekoque
3831318
asked Jan 4 at 18:42
koquekoque
3831318
asked Jan 4 at 18:42
koquekoque
3831318
3831318
FWIW, I haven't seen many sites that allow a filter on multiple price ranges. The example you give for a thing you'd want should just beproductQuery.where('price').gte(100).lte(300).
– Paul
Jan 4 at 19:02
add a comment |
FWIW, I haven't seen many sites that allow a filter on multiple price ranges. The example you give for a thing you'd want should just beproductQuery.where('price').gte(100).lte(300).
– Paul
Jan 4 at 19:02
FWIW, I haven't seen many sites that allow a filter on multiple price ranges. The example you give for a thing you'd want should just be
productQuery.where('price').gte(100).lte(300).– Paul
Jan 4 at 19:02
FWIW, I haven't seen many sites that allow a filter on multiple price ranges. The example you give for a thing you'd want should just be
productQuery.where('price').gte(100).lte(300).– Paul
Jan 4 at 19:02
add a comment |
1 Answer
1
active
oldest
votes
So the query you're trying to build should look like below:
{
"$and":[
{"$or":[
{"price":{"$gte":100,"$lte":200}},
{"price":{"$gte":200,"$lte":300}}
]
},
{"brand":{"$in":["Amana","Whirlpool"]}}
]
}
So it contains $or to include multiple price ranges. To do that you can build that query as plain JavaScript object and then pass it to find method, try:
let query = {
'$and':
};
var priceQuery = ;
let brands = ;
if(filters.priceFilters.length) {
for(let filter of filters.priceFilters) {
priceQuery.push({ 'price': { $gte: +filter.low, $lte: +filter.high } });
}
query['$and'].push({ '$or': priceQuery });
};
if(filters.brandFilters.length) {
for(let filter of filters.brandFilters) {
brands.push(filter.brand)
}
query['$and'].push({ 'brand': { '$in': brands } });
}
and then
let products = await Product.find(query);
answered Jan 4 at 19:12
micklmickl
16.4k61841
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
So the query you're trying to build should look like below:
{
"$and":[
{"$or":[
{"price":{"$gte":100,"$lte":200}},
{"price":{"$gte":200,"$lte":300}}
]
},
{"brand":{"$in":["Amana","Whirlpool"]}}
]
}
So it contains $or to include multiple price ranges. To do that you can build that query as plain JavaScript object and then pass it to find method, try:
let query = {
'$and':
};
var priceQuery = ;
let brands = ;
if(filters.priceFilters.length) {
for(let filter of filters.priceFilters) {
priceQuery.push({ 'price': { $gte: +filter.low, $lte: +filter.high } });
}
query['$and'].push({ '$or': priceQuery });
};
if(filters.brandFilters.length) {
for(let filter of filters.brandFilters) {
brands.push(filter.brand)
}
query['$and'].push({ 'brand': { '$in': brands } });
}
and then
let products = await Product.find(query);
answered Jan 4 at 19:12
micklmickl
16.4k61841
add a comment |
So the query you're trying to build should look like below:
{
"$and":[
{"$or":[
{"price":{"$gte":100,"$lte":200}},
{"price":{"$gte":200,"$lte":300}}
]
},
{"brand":{"$in":["Amana","Whirlpool"]}}
]
}
So it contains $or to include multiple price ranges. To do that you can build that query as plain JavaScript object and then pass it to find method, try:
let query = {
'$and':
};
var priceQuery = ;
let brands = ;
if(filters.priceFilters.length) {
for(let filter of filters.priceFilters) {
priceQuery.push({ 'price': { $gte: +filter.low, $lte: +filter.high } });
}
query['$and'].push({ '$or': priceQuery });
};
if(filters.brandFilters.length) {
for(let filter of filters.brandFilters) {
brands.push(filter.brand)
}
query['$and'].push({ 'brand': { '$in': brands } });
}
and then
let products = await Product.find(query);
answered Jan 4 at 19:12
micklmickl
16.4k61841
add a comment |
So the query you're trying to build should look like below:
{
"$and":[
{"$or":[
{"price":{"$gte":100,"$lte":200}},
{"price":{"$gte":200,"$lte":300}}
]
},
{"brand":{"$in":["Amana","Whirlpool"]}}
]
}
So it contains $or to include multiple price ranges. To do that you can build that query as plain JavaScript object and then pass it to find method, try:
let query = {
'$and':
};
var priceQuery = ;
let brands = ;
if(filters.priceFilters.length) {
for(let filter of filters.priceFilters) {
priceQuery.push({ 'price': { $gte: +filter.low, $lte: +filter.high } });
}
query['$and'].push({ '$or': priceQuery });
};
if(filters.brandFilters.length) {
for(let filter of filters.brandFilters) {
brands.push(filter.brand)
}
query['$and'].push({ 'brand': { '$in': brands } });
}
and then
let products = await Product.find(query);
answered Jan 4 at 19:12
micklmickl
16.4k61841
So the query you're trying to build should look like below:
{
"$and":[
{"$or":[
{"price":{"$gte":100,"$lte":200}},
{"price":{"$gte":200,"$lte":300}}
]
},
{"brand":{"$in":["Amana","Whirlpool"]}}
]
}
So it contains $or to include multiple price ranges. To do that you can build that query as plain JavaScript object and then pass it to find method, try:
let query = {
'$and':
};
var priceQuery = ;
let brands = ;
if(filters.priceFilters.length) {
for(let filter of filters.priceFilters) {
priceQuery.push({ 'price': { $gte: +filter.low, $lte: +filter.high } });
}
query['$and'].push({ '$or': priceQuery });
};
if(filters.brandFilters.length) {
for(let filter of filters.brandFilters) {
brands.push(filter.brand)
}
query['$and'].push({ 'brand': { '$in': brands } });
}
and then
let products = await Product.find(query);
answered Jan 4 at 19:12
micklmickl
16.4k61841
answered Jan 4 at 19:12
micklmickl
16.4k61841
answered Jan 4 at 19:12
micklmickl
16.4k61841
answered Jan 4 at 19:12
micklmickl
16.4k61841
16.4k61841
add a comment |
add a comment |
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FWIW, I haven't seen many sites that allow a filter on multiple price ranges. The example you give for a thing you'd want should just be
productQuery.where('price').gte(100).lte(300).– Paul
Jan 4 at 19:02